Abstract : Gas-dynamic properties which include the effects of dissociation, ionization, and intermolecular forces (van der Walls) are presented for incident and reflected shock waves in equilibrium imperfect nitrogen. Charts are presented for incident shock Mach numbers in the range from 4 to 30 into (ideal) nitrogen at a temperature of 300 K and pressures in the range from 0.0010 to 10000 cm Hg. The temperature and density in any region do not exceed, respectively, 15,000 K and 150 amagats. In addi tion to the usual incident and reflected shock properties, stagnation conditions upstream and downstream and conditions immediately downstream of a standing shock wave are also presented. At pressures above one atmosphere in the undisturbed gas, the effects of the intermolecular forces on the gasdynamic properties are demonstrated. (Author)